JPS62157765A - Machining center - Google Patents

Abstract

PURPOSE:To apply desired machining accurately and in a short time, by a method wherein an optimum machining process is always employed according to the material, the machining shape, or the machining state of a work, and positioning of the work is accurately effected. CONSTITUTION:A machining center 1 is formed through combination of a wire cut discharge machining device 17, a discharge machining device 18, a milling machine 19, an electrolytic grinding device 20, a grinding device 21, and a ball machine 22, and enables employment of an optimum machining process according to the material, the machining shape, and the machining state of a work. In order to accurately position a machining device and the work, a microscope, removably attached to a part of machining heads 17a-22a of machining devices 17-22, respectively, is provided, and detects laser irradiated from a laser irradiating device. As a result, desired machining can be performed accurately and in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a machining center that can perform various types of processing on a workpiece using a single device.

[Conventional technology]

There are various methods of machining a workpiece, such as electric discharge machining, wire cut electric discharge machining, milling, electrolytic polishing, and laser machining, as well as various surface treatments.

However, each of the above processing methods has its own advantages and disadvantages, and there are also restrictions on the shapes that can be processed, so not all processing methods are possible with any one processing method. However, it cannot be said that any processing method is the best processing method.

However, it is necessary to properly select each of the above-mentioned processing methods according to the material, processing shape, processing conditions, etc. of the workpiece using one device, and perform processing by accurately positioning the device and the workpiece. If possible, it would be extremely efficient and the workpiece could be machined in the best way possible, but such a device has not yet been developed.

[Problem that the invention seeks to solve]

The present invention has been made based on the above-mentioned viewpoints, and its purpose is to appropriately select an optimal processing method depending on the material, processing shape, processing state, etc. of the workpiece, It is an object of the present invention to provide a device that can perform processing by accurately positioning a processing device and a workpiece.

[Failure to solve the problem]

Therefore, the above purpose is to provide a long and narrow machine base, a work table provided with a reference point, and a work table provided on the machine base to move the work table in a direction perpendicular to -F on the machine base and in a direction orthogonal thereto. a biaxial feeder that moves in two axial directions, a plurality of machining heads that are movable in the longitudinal direction on the machine stand and can each perform different processing, and a reference point provided on the work table. Correct positioning relative to the desired machining head, there is a reference point detection device that can be detachably attached to the throat of each machining machine, each tool magazine, and the desired tool is supplied to each machining head from the tool magazine. This is achieved by a machining center that includes an automatic tool changer, a device that supplies a desired machining fluid to each machining head as needed, and a power source that supplies predetermined power to each machining head.

[For production]

With each configuration as described above, the optimal machining method is always adopted depending on the material, machining shape, machining condition, etc. of the workpiece, and the positioning of the device and the workpiece during irregular machining is accurate 6F [ Since the processing is carried out in advance, the desired processing can be performed accurately and in a short time.

〔Example〕

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is an explanatory view showing one embodiment of a machining center according to the present invention, and FIGS. 2 and 3 are explanatory views showing the configuration of a positioning device thereof.

In Figs. 1 to 3, 1 is a machining center, 2 is a machine stand, 3 is a cross slide table mounted on the above-mentioned machine stand 2, 4 is a bed, 5 is mounted on the above bed 4, and the workpiece is 6 is a motor; 6a is a shaft of the motor 6; 7 is a coupling; 8 is a feed screw; 9
1 is a Y-axis direction moving table for processing and feeding the workpiece in the Y-axis direction; 10 is a feed screw; 11 is a coupling; 12 is a motor; 12a is a shirt 1-113 of the motor 12; 14 is a processing device feed table; is the shaft 15a of the motor 15
is connected to the motor 1 through a coupling 16.
5 rotates, and the processing equipment feed table 1
3 is a feed screw that feeds machining in the X-axis direction, 17 is a wire cut electric discharge machining device, 17a is a machining head, 17b is an arm, 17C is a wire electrode, 18 is an electric discharge machining device, 18a
is a processing head, 18b is a tool changer, 18C is a tool magazine, 18d, 18e, 18f and 18g are processing electrodes, 19 is a milling machine, 19a is a processing head,
19b is a tool changer, 19c is a tool magazine, 19d
, 19e, 19f and 19g are milling cutters, 20 is an electropolishing or grinding device, 20a is a processing head, 20b is a tool changer, 20c is a tool magazine, 20d, 20e, 20
f and 20g are electrodes for electrolytic polishing or grinding, 21 is a polishing or grinding device, 21a is a processing head, 21b is a tool changer, 2IC is a tool magazine, 21d, 21e, 21f
and 21g is a polishing or grinding wheel, 22 is a drilling machine, 22
22b is a tool changer, 22c is a tool magazine, and 22ct, 22e, 22f, and 22g are drills.

In addition, in the second center, 23 is a laser irradiation device provided on the Y-axis direction moving table 9, and 24 is each processing device 17 to 22.
This is a microscope that is detachably attached to a part of the processing head 1a to 22a and detects the laser beam irradiated from the laser irradiation device 23.

In addition, in Fig. 3, 5 is a spindle, 26 is a rod, 27
is a hydraulic cylinder, 28 is a positioning bottle, 29 is a rod,
30 is a hydraulic cylinder, 31 is a rod, 32 is a hydraulic cylinder, 33, 34 and 35 are hydraulic switching valves that switch the flow of hydraulic pressure supplied from the hydraulic pump 36 to the hydraulic cylinders 27, 30 and 32, and 37 is an oil tank. be.

The machine base 2 includes a cross slide table 3 that moves the workpiece in the X-axis direction and the Y-axis direction, and each processing device 17.
to 22 in the X-axis direction.
3 is installed.

The X-axis moving table 5 constituting the cross slide table 3 is moved in the X-axis direction by a motor 6, while the X-axis moving table 9 is moved in the Y-axis direction by a motor I2.

Y where the workpiece is mounted! I11 direction moving table 9
is provided with a laser irradiation device 23, and on the other hand, a microscope 24 for detecting the laser beam irradiated from the laser irradiation device 23 is detachably attached to the processing heads 17a to 22a of each of the processing devices 17 to 22. There is.

In the machining center according to the present invention, before starting machining, the most suitable machining device for machining is selected.

For example, if the electrical discharge machining device 18 is selected now,
The motor 15 is driven, and the electrical discharge machining device 18 mounted on the processing device feed table 13 is moved to a position opposite to the workpiece mounted on the X-axis direction moving table 9.

A plurality of positioning holes 13a, 13a and a groove 13b into which the spindle 25 is fitted are formed on the surface of the processing device feed table 13 facing the machine base 2. Then,
When the most suitable processing device for processing is selected and the processing device is moved to a predetermined position by the processing device feed table 13, the hydraulic switching valve 34 is activated so that the positioning pin 28 is drawn into the machine base 2. On the other hand, the hydraulic switching valves 33 and 35 are switched so that the spindle 25 and a spindle (not shown) attached to one end of the rod 31 of the hydraulic cylinder 32 are similarly drawn into the machine base 2. The processing device feed table 13 remains movable in the X-axis direction.

As mentioned above, the electrical discharge machining device 18 moves the X-axis direction moving table 9, ), ! : When the tool i7' is moved to a position facing the processed workpiece and the movement of the processing device feed table 13 is stopped, the hydraulic switching valve 34 is switched and the positioning pin 28 is moved to the position opposite to the processed workpiece. , is inserted into the positioning hole 13a formed in the table 13 to perform positioning, and furthermore, the hydraulic switching valves 33 and 35 are switched, and the processing equipment feed table 13 is attracted to the machine base 2 by the spindle 25 to ensure a secure positioning. Fixed.

After that, accurate positioning of the workpiece placed on the X-axis direction moving table 9-A is started. That is, the motors 6 and 12 are driven, and the X-axis moving table 5 and the X-axis moving table 9 are moved in the X-axis direction and the Y-axis direction, respectively, and the laser irradiation device provided on the X-axis moving table 9 is moved. When the microscope 24 attached to the machining head 18a of the electrical discharge machining device 18 captures the laser beam irradiated from the laser beam 23, fine adjustments are made automatically or manually so that the spot matches the reference point at the center of the field of view. The driving of the motors 6 and 12 is stopped F, and X! +1
The movement of the one-direction moving table 5 and the X-axis direction moving table 9 is stopped F, and the positions at this time are recorded in the numerical control device.

After that, by reading and executing a preset program according to the machining shape, machining state, etc. to be applied to the workpiece placed on the X-axis direction moving table 9H, the optimal machining is carried out from within the electrode magazine 18C. A machining electrode is selected, and the selected machining electrode is transferred to the tool changer 1.
When the electrode magazine 18C is taken out from the electrode magazine 18C by 8b and attached to the machining head 18a, a machining voltage pulse is applied between the machining electrode and the workpiece, and machining fluid is jetted into the machining gap to generate electrical discharge. Processing begins.

Furthermore, when the machining is completed to a predetermined area during electric discharge machining, the electric discharge machining is temporarily stopped, the machining electrode used is removed from the machining nozzle 18a by the tool changer 18b, and is placed in the electrode magazine 18C. Thereafter, the machining electrode most suitable for machining the next area is selected from within the electrode magazine 18C, and the machining electrode is taken out from within the electrode magazine 18c by the tool changer L8b. When it is attached to the machining head 18a, electrical discharge machining is restarted.

In addition, the rotation control of the motors 6.12 and 15, the switching control of the hydraulic switching valves 33.34 and 35, and the application of voltage pulses between the electrode and the workpiece in electrical discharge machining, electrolytic polishing, or grinding are not shown. The power supply circuit (not shown), the machining fluid supply device (not shown) that sprays machining fluid into the machining gap formed by the electrode and the workpiece, etc., are collectively controlled by a control device with a built-in numerical control device. is configured to be carried out.

In addition, in the wire force/7-tooth electric discharge machining device 17, for machining,
A predetermined wire electrode 17C is stretched on 16 wires between the arm 17a and the arm 17b, and a power source (not shown) connects the wire electrode 17c and the workpiece placed on the Y'j111 direction moving table 9. A machining voltage pulse is applied, and at the same time, machining fluid is jetted and supplied to the machining gap formed by the wire electrode 17c and the workpiece to perform machining.

In the milling machine 19, a suitable milling cutter 19d is attached to the arm of a cutting edge 19a, and rotational motion is applied to perform milling. Further, various types of milling cutters 19e, 19f, and 19g are attached to the rotary electrode magazine 19c, and the milling cutters are replaced by a tool changing device 19b.

In the electrolytic polishing or grinding device 20, a predetermined electrolytic polishing or grinding electrode 20d is attached to the processing head 20a, and a rotational motion is applied to the electrolytic polishing or grinding mold w82od, and the electrolytic polishing or grinding electrode 20d and the workpiece are rotated. A machining voltage pulse is applied between the bodies, and a machining fluid is jetted and supplied to perform electrolytic polishing or grinding. Further, various electrodes 20e, 2Of, and 20g for electrolytic polishing or grinding are attached to the rotary electrode magazine 20c, and the electrodes for electrolytic polishing or grinding are replaced by a tool changer 20b.

Polishing or grinding equipment! At t21, an appropriate grindstone 21d is attached to the arm of the processing head 21a, and the grindstone 21d
A rotational motion is applied to the material to perform machining or grinding. In addition, various grindstones 2 are installed in the rotating electrode magazine 21C.
1e, 21f, and 21ff are attached, and the grindstones are replaced by a tool changing device 21b.

In the drilling machine 22, a desired drill 2 is attached to the processing head 22a.
2d is attached, and rotational movement is applied to the drill 22d to perform machining. Further, various drills 22e, 22f, and 22g are attached to the rotary electrode magazine 22C, and the drills are replaced by a tool changing device 22b.

[Effects of the Invention] Since the present invention is configured as described above, when the present invention is used, the optimum processing method is always adopted depending on the material, processing shape, processing condition, etc. of the workpiece, and the Since the processing is performed after accurately positioning the device and the workpiece, the desired processing can be performed accurately and in a short time.

Note that the configuration of the present invention is not limited to the above-mentioned embodiments. That is, for example, in this embodiment, the machining devices are a wire cut electrical discharge machining device 17, an electrical discharge machining device 18, a milling machine 19, an electrolytic polishing or grinding device W20, an rtlF polishing or grinding device 21, and a drilling machine 22. In addition to the processing equipment described above, a laser processing equipment, a discharge coating equipment, etc. may be provided. That is, the processing devices to be mounted on the processing device feed table 13 can be appropriately selected and installed from widely known processing devices according to each machining center, and the number of processing devices can be appropriately selected and installed. It can be increased or decreased. In addition, the positioning device is composed of a laser irradiation device and a microscope 24, and the microscope 24 is attached to the processing head of each device, but it may be attached to other locations as long as accurate positioning can be performed. Alternatively, the laser irradiation device may be attached to the processing head, and the microscope 24 may be attached to the Y-axis direction moving table 9. Furthermore, the present invention is not limited to a positioning device using a laser beam, and any known positioning device can be used. In addition, the method of moving and controlling the workpiece and each processing device can be freely changed within the scope of the purpose of the present invention, and the present invention encompasses all of them. It is.

[Brief explanation of drawings]

FIG. 1 is an explanatory view showing one embodiment of a machining center according to the present invention, and FIGS. 2 and 3 are explanatory views showing the configuration of a positioning device thereof.

Claims (1)

[Claims] A long and narrow machine base, a work table equipped with a reference point,
A biaxial feed device is provided on the machine stand to move the work table in two axes: a longitudinal direction on the machine stand and a direction perpendicular thereto; In order to correctly position the reference point provided on the work table relative to the desired processing head, it is possible to attach and detach it to each processing head as necessary. a reference point detection device to be attached, each tool magazine, an automatic tool changer that supplies a desired tool from the tool magazine to each machining head, and a device that supplies a desired machining fluid to each machining head as necessary. , and a power source that supplies a predetermined amount of power to each machining head.